During the placement, construction, enlargement, repair, alteration or removal of any dam, the secretary shall, either with the department's own engineers or by consulting engineers or engineering organizations, make periodic inspections for the purpose of ascertaining compliance with the certificate of approval. The secretary shall require the owner at his or her expense to perform work or tests as necessary and to provide adequate supervision during the placement, construction, enlargement, repair, alteration or removal of a dam: Provided, That with respect to dams designed by and constructed under the supervision of the natural resources conservation service, as to such dams no state inspections are required.
If at any time during placement, construction, enlargement, repair, alteration or removal of any dam, the secretary finds that the work is not being done in accordance with the provisions of the original or revised certificate of approval, the secretary shall notify the owner by certified or registered mail, return receipt requested, to correct the deficiency, cease and desist work or to show cause as to why the certificate of approval should not be revoked.
The notice shall state the reason or reasons why the work is not in accordance with the certificate of approval. The secretary may order that work on the dam cease until the owner has complied with the notice.
If the secretary finds that amendments, modifications or changes are necessary to ensure the safety of the dam, the secretary may order the owner to revise his or her plans and specifications. If conditions are revealed which will not permit the placement, construction, enlargement, repair, alteration or removal of the dam in a safe manner, the certificate of approval may be revoked.
Immediately upon completion of a new dam or enlargement, repair or alteration of a dam, the owner shall notify the secretary: Provided, That immediately upon completion of a dam constructed under the supervision of the natural resources conservation service, a certification of completion shall be sent to the director by the natural resources conservation service, and a complete set of design documents "as built" plans, and specifications and safety plan of evacuation shall be provided to the director within ninety days after completion of the dam.